Calibre 2236 Is fitted which has a Syloxi hairspring that is produced by Rolex and patented. This silicon hairspring contains a patented geometry that makes certain the calibre’s regularity in any position. Situated in Henley-on-Thames, Bremont Watches have managed to put together an reliable tackle pilot watches. Originally Started in https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/